ISO/IEC 24730-2:2012 PDF

Information technology — Real time locating systems (RTLS) — Part 2: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol

First page of standard ISO/IEC 24730-2:2012

Open preview (PDF)

Title (English):

ISO/IEC 24730-2:2012

Information technology — Real time locating systems (RTLS) — Part 2: Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 6
Publication date:: May 31, 2012
Edition:: ISO/IEC IS 24730 edition 2 version 1
ICS:: 35.040

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

ISO/IEC 24730-2:2012 is comprised of this main document and two additional parts, ISO/IEC 24730-21 and ISO/IEC 24730-22, and defines a networked location system that provides X-Y coordinates and data telemetry. The system utilizes real-time locating systems (RTLS) transmitters that autonomously generate a direct sequence spread spectrum radio frequency beacon. These devices can be field programmable and support an optional exciter mode that allows modification of the rate of location update and location of the RTLS device. ISO/IEC 24730-2 defines these modes, but does not define the means by which they are accomplished.

Technical details

Technical committee: ISO/IEC JTC 1/SC 31 - Automatic identification and data capture techniques
SKU: ISO/IEC 24730-2:2012

Abstract

Overview

ISO/IEC 24730-2:2012 specifies the Direct Sequence Spread Spectrum (DSSS) 2.4 GHz air interface protocol for real time locating systems (RTLS). Part of the ISO/IEC 24730 series, this standard defines the radio beaconing, message formats and basic behaviours for networked RTLS transmitters (tags), readers and reference tags that provide X–Y coordinates and telemetry. It targets RTLS deployments operating in the internationally available 2.400–2.4835 GHz band and is intended for frequent updates and approximate location (typical accuracy ≤ 3 m).

Key topics and technical requirements

Air interface: Defines a DSSS-based 2.4 GHz beaconing protocol for RTLS transmitters and reference tags.
Beaconing / tag blink: Transmitters autonomously generate spread‑spectrum beacons (blinks and sub‑blinks).
Frequency & power: Operates in 2.4 GHz ISM band; Class 1 transmissions are low power and co‑exist with IEEE 802.11 WLAN and ISO/IEC 18000‑4 devices. Class 1 EIRP shall not exceed 10 dBm where applicable; Class II limited by local regulations.
Range & performance: Transmission power and parameters enable at least 300 m line‑of‑sight (LOS) reception under specified conditions. Each receiver must be able to process a minimum of 120 beacon transmissions per second.
Location accuracy: Nominal RTLS location data shall be within a 3 m or less radius of the actual transmitter location.
Device roles: Defines RTLS transmitter (battery tag), RTLS reader, RTLS reference tag (always‑on for synchronization), RTLS server and RTLS infrastructure.
Location methods: Supports algorithms based on ToA, TDoA, RSS (triangulation/multilateration), and AoA - reader synchronization for timing methods is specified in related parts.
Manufacturer ID: Manufacturer tag identification is a 16‑bit field allocated per ISO/IEC 15963.
Modes: Supports field‑programmable transmitters and an optional exciter mode that can modify update rate or location behaviour (mode defined but not the control mechanism).

Applications

Asset tracking and inventory management in warehouses, hospitals, airports, campuses and industrial sites.
Use cases requiring frequent location updates (several times per minute) and sub‑3 m accuracy for mobile assets or personnel.
Integration with asset management systems and telemetry feeds for operational analytics, safety and workflow optimization.

Who should use this standard

RTLS hardware manufacturers (tags, readers, reference devices)
System integrators and solution vendors deploying DSSS 2.4 GHz RTLS
Enterprise IT, facilities and asset management teams specifying interoperable RTLS solutions
Test labs and certification bodies validating conformance and RF coexistence

Related standards

ISO/IEC 24730‑1 (RTLS API) - compliance required for full conformance
ISO/IEC 24730‑21 and 24730‑22 (DSSS variants: single spread code DBPSK/BPSK and multiple spread codes QPSK/WOQPSK)
ISO/IEC 18000‑4 (2.45 GHz RFID parameters)
ISO/IEC 8802‑11 (IEEE 802.11 WLAN coexistence)
ISO/IEC 15963 (manufacturer tag ID allocation)

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Air interface: Defines a DSSS-based 2.4 GHz beaconing protocol for RTLS transmitters and reference tags.
Beaconing / tag blink: Transmitters autonomously generate spread‑spectrum beacons (blinks and sub‑blinks).
Frequency & power: Operates in 2.4 GHz ISM band; Class 1 transmissions are low power and co‑exist with IEEE 802.11 WLAN and ISO/IEC 18000‑4 devices. Class 1 EIRP shall not exceed 10 dBm where applicable; Class II limited by local regulations.
Range & performance: Transmission power and parameters enable at least 300 m line‑of‑sight (LOS) reception under specified conditions. Each receiver must be able to process a minimum of 120 beacon transmissions per second.
Location accuracy: Nominal RTLS location data shall be within a 3 m or less radius of the actual transmitter location.
Device roles: Defines RTLS transmitter (battery tag), RTLS reader, RTLS reference tag (always‑on for synchronization), RTLS server and RTLS infrastructure.
Location methods: Supports algorithms based on ToA, TDoA, RSS (triangulation/multilateration), and AoA - reader synchronization for timing methods is specified in related parts.
Manufacturer ID: Manufacturer tag identification is a 16‑bit field allocated per ISO/IEC 15963.
Modes: Supports field‑programmable transmitters and an optional exciter mode that can modify update rate or location behaviour (mode defined but not the control mechanism).

Applications

Asset tracking and inventory management in warehouses, hospitals, airports, campuses and industrial sites.
Use cases requiring frequent location updates (several times per minute) and sub‑3 m accuracy for mobile assets or personnel.
Integration with asset management systems and telemetry feeds for operational analytics, safety and workflow optimization.

Who should use this standard

RTLS hardware manufacturers (tags, readers, reference devices)
System integrators and solution vendors deploying DSSS 2.4 GHz RTLS
Enterprise IT, facilities and asset management teams specifying interoperable RTLS solutions
Test labs and certification bodies validating conformance and RF coexistence

Related standards

ISO/IEC 24730‑1 (RTLS API) - compliance required for full conformance
ISO/IEC 24730‑21 and 24730‑22 (DSSS variants: single spread code DBPSK/BPSK and multiple spread codes QPSK/WOQPSK)
ISO/IEC 18000‑4 (2.45 GHz RFID parameters)
ISO/IEC 8802‑11 (IEEE 802.11 WLAN coexistence)
ISO/IEC 15963 (manufacturer tag ID allocation)

ISO/IEC 24730-2:2012 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications

Who should use this standard

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications

Who should use this standard

Related standards

Related standards

Information technology — Real-time locating systems (RTLS) — Part 2: 2,4 GHz air interface protocol

Information technology — Radio frequency identification for item management — Part 4: Parameters for air inte…

Information technology — Radio frequency identification for item management — Unique identification for RF ta…

Information technology — Real-time locating systems (RTLS) — Part 1: Application program interface (API)

Information technology. Real time locating systems (RTLS). Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air…

Information technology — Telecommunications and information exchange between systems — Local and metropolitan…